With this module you can easily drag&drop multi-Files into a form-view. You can also add Screenshots with CTRL+V. It only works in "Read"-Mode.
Also see: https://apps.odoo.com/apps/modules/11.0/drag-and-drop/
Cytex124 <https://github.com/cytex124>
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Odoo App Page: https://apps.odoo.com/apps/modules/11.0/drag-and-drop/
Changelog: <doc/changelog.rst>
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08.12.2017 Tested on Odoo 11 Community/Enterprise with Commit-ID dc61861f90d15797b19f8ebddfb0c8a66d0afa88 24.12.2017 Tested on Odoo 11 Community/Enterprise with Commit-ID 9d9ca960ae61c161d46dd6a86b8b91976f0ed356